题干

在如图所示的方格柢中,向量 abc 的起点和终点均在格点(小正方形顶点)上,若 c 与x a +y b (x,y为非零实数)共线,则
x
y
的值为____

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答案(点此获取答案解析)

6
5

同类题1

阅读下面文字,完成后面的题目。

【甲】

      秦王怫然怒,谓唐雎曰:“公亦尝闻天子之怒乎?”唐雎对曰:“臣未尝闻也。”秦王曰:“天子之怒,伏尸百万,流血千里。”唐雎曰:“大王尝闻布衣之怒乎?”秦王曰:“布衣之怒,亦免冠徒跣 ,以头抢地耳。”唐雎曰:“此庸夫之怒也,非士之怒也。夫专诸之刺王僚也,彗星袭月;聂政之刺韩傀也,白虹贯日;要离之刺庆忌也,仓鹰击于殿上。此三子者,皆布衣之士也,怀怒未发,休祲降于天,与臣而将四矣。若士必怒,伏尸二人,流血五步,天下缟素,今日是也。”挺剑而起。

      秦王色挠,长跪而谢之曰:“先生坐!何至于此!寡人谕矣:夫韩、魏灭亡,而安陵以五十里之地存者,徒以有先生也。”

                                                                                                                                                     (《唐雎不辱使命》)

【乙】

      郑同北见赵王。赵王曰:“子南方之传士也,何以教之?”郑同曰:“臣南方草鄙之人也,何足问?虽然,王致之于前,安敢不对乎?臣少之时,亲尝教以兵。”赵王曰:“寡人不好兵。”郑同因抚手仰天而笑之曰:“兵固天下之狙①喜也,臣故意大王不好也。臣亦尝以兵说魏昭王,昭王亦曰:‘寡人不喜。’臣曰:‘王之行能如许由②乎?许由无天下之累,故不受也。今王既受先王之传;欲宗庙之安乎?’王曰:‘然。’‘今有人持万金之财,时宿于野,内无孟贲③之威,外无弓弩之御,不出宿夕,人必危之矣。’今有强贪之国,临王之境,索王之地,告以理则不可,说以义则不听。王非战国守圉之具,其将何以当之?王若无兵,邻国得志矣。”赵王曰:“寡人请奉教。”

                                                                                                                                                   (《战国策•赵策三》,有删改)

    【注】:①狙:狡猾,文中指狡猾的人。②许由:尧舜时代的贤人。③孟贲(bēn):战国时期卫国人,是古代著名的武士。

同类题2

根据短文理解,选择正确答案。

    Most people who move to a foreign country may experience a period of time when they have a lot of stress in the new culture. This feeling is often called “culture shock” and it is important to learn how to deal with culture shock. First of all, you should know that everyone in a new situation will go through some form of culture shock. There are four general stages of cultural adjustment(适应).

    The first stage is usually referred to as the honeymoon stage. Upon arriving in a new environment, you'll be interested in the new culture. Everything will seem exciting, and everyone will seem friendly and helpful.

    The second stage is called the withdrawal stage. The excitement that you felt before changes to frustration(沮丧) as you find it difficult to deal with new problems. The language is hard to learn; friends are hard to make; simple things like shopping and going to the bank are challenges. It is at this stage that you are likely to feel anxious and homesick.

    If you are one of those who manage to stick it out (坚持下来), you will enter the third stage---- the recovery stage. At this point, you'll feel more confident in the new culture. You'll start to understand and accept the way things are done and the way people behave in your new environment.

    The last stage is the stability stage---- this is the point when people start to feel at home in the new culture. At this stage, you will behave well in the new culture, and prefer some aspects(方面) of the new culture to your own culture.

    There is, in a sense, a fifth stage to this process. If you decide to return home after a long period in a new culture, you may experience what is called “reverse culture shock”. This means that you may find aspects of your own culture “foreign”, because you're so used to the new culture. Reverse culture shock is usually pretty mild(温和的) and doesn't last for very long.